<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title" border-topbottom>当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{this.$store.state.city}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title">热门城市</div>
					<div class="button-list">
					<div 
					class="button-wrapper" 
					v-for="(item, index) of hot" 
					:keys="item.id"
					@click="handleCityClick(item.name)"
					>
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			<div 
				class="area" 
				v-for="(item ,key) of cities" 
				:keys="item.id"
				:ref ="key"
			>
				<div class="title">{{key}}</div>
				<div class="item-list">
					<div 
						class="item border-bottom"
						v-for="innerItem of item"
						:keys="innerItem"
						@click="handleCityClick(innerItem.name)"
					>{{innerItem.name}}</div>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
	import Bscroll from 'better-scroll'
	export default{
		name:'CityList',
		props:{
			hot:Array,
			cities:Object,
			letter:String
		},
		mounted() {
			this.scroll = new Bscroll(this.$refs.wrapper)
		},
		methods:{
			handleCityClick (city) {
				this.$store.commit('changeCity',city)
				this.$router.push('/')
			}
		},
		watch:{
			letter(){
				if(this.letter){
					const element =this.$refs[this.letter][0]
					this.scroll.scrollToElement(element)
				}
			}
		}
	}
</script>

<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.border-topbottom
		&:before
			border-color:#777
		&:after
			border-color:#777
	.border-bottom
		&:after
			border-color:#777
	.list
		overflow:hidden
		position:absolute
		top:1.58rem
		left:0
		right:0
		bottom:0
		.title
			line-height:.54rem
			background:#eee
			padding-left:.2rem
			color:#666
			font-size:.26rem
		.button-list
			overflow:hidden
			padding:.1rem .6rem .1rem .1rem
			.button-wrapper
				float:left
				width:33.3%
				.button
					margin:.1rem
					padding:.1rem 0
					text-align:center
					border:.02rem solid #ccc
					border-radius:.06rem
		.item-list
			.item
				line-height:.76rem
				padding-left:.2rem
	
</style>
